Rainboe: I think you have missed my point. Covering controls is not 'follow me through' as in good old light a/c instruction. There is no interference, just prudent alertness to be able to takeover for whatever reason. I would hope captains cover the controls of low experience F/O's landings and X-wind takeoffs and nasty gusty days.
Circle to lands. A simulator is a training tool for the real world. If you fly circling head in, and are not disciplined to search outside, it is very likely you will do the same in reality. That is not the best use of a simulator; to instill correct techniques for the live a/c.